Engine



FIG. 1 is a front-left perspective view from above of an engine;

FIG. 2 is a front-right perspective view from below of the claimed design of FIG. 1;

FIG. 3 is a front view of the claimed design of FIG. 1;

FIG. 4 is a rear view of the claimed design of FIG. 1;

FIG. 5 is a left side view of the claimed design of FIG. 1;

FIG. 6 is a right side view of the claimed design of FIG. 1;

FIG. 7 is a top view of the claimed design of FIG. 1; and,

FIG. 8 is a bottom view of the claimed design of FIG. 1.

Any portion of the article depicted in broken lines forms no part of the claimed design. 

CLAIM I claim the ornamental design for an engine, as shown and described. 